feat: initial Pezkuwi Apps rebrand from polkadot-apps

Rebranded terminology:
- Polkadot → Pezkuwi
- Kusama → Dicle
- Westend → Zagros
- Rococo → PezkuwiChain
- Substrate → Bizinikiwi
- parachain → teyrchain

Custom logos with Kurdistan brand colors (#e6007a → #86e62a):
- bizinikiwi-hexagon.svg
- sora-bizinikiwi.svg
- hezscanner.svg
- heztreasury.svg
- pezkuwiscan.svg
- pezkuwistats.svg
- pezkuwiassembly.svg
- pezkuwiholic.svg

packages/react-params/src/Extra/Proposal.tsx

@@ -0,0 +1,53 @@
+// Copyright 2017-2025 @pezkuwi/app-extrinsics authors & contributors
+// SPDX-License-Identifier: Apache-2.0
+
+import type { Props, RawParam } from '../types.js';
+
+import React, { useCallback, useState } from 'react';
+
+import { useApi } from '@pezkuwi/react-hooks';
+
+import { extractInitial } from './Call.js';
+import ExtrinsicDisplay from './Extrinsic.js';
+
+function ProposalDisplay ({ className = '', defaultValue, isDisabled, isError, label, onChange, onEnter, onEscape, withLabel }: Props): React.ReactElement<Props> {
+  const { api, apiDefaultTxSudo } = useApi();
+
+  const [{ initialArgs, initialValue }] = useState(
+    () => extractInitial(api, apiDefaultTxSudo, defaultValue)
+  );
+
+  const _onChange = useCallback(
+    ({ isValid, value }: RawParam): void => {
+      let proposal = null;
+
+      if (isValid && value) {
+        proposal = api.createType('Proposal', value);
+      }
+
+      onChange && onChange({
+        isValid,
+        value: proposal
+      });
+    },
+    [api, onChange]
+  );
+
+  return (
+    <ExtrinsicDisplay
+      className={className}
+      defaultArgs={initialArgs}
+      defaultValue={initialValue}
+      isDisabled={isDisabled}
+      isError={isError}
+      isPrivate
+      label={label}
+      onChange={_onChange}
+      onEnter={onEnter}
+      onEscape={onEscape}
+      withLabel={withLabel}
+    />
+  );
+}
+
+export default React.memo(ProposalDisplay);